It's native to the USA, too.
No.
For a guy that "only speaks English" he doesn't seem to know what "native" means.
Speak for yourself. What language would you attribute as native to USA?
There are many but just to pick one -- Navajo. That's why we used "code-talkers" in WWII -- the language was so unique (from the perspective of Japan) that it couldn't be broken as a code.
English however is native to England. That's kind of why we call it "Engl-ish".
We've got some actual road signs around this neck of the woods in another native American language -- Cherokee. Doesn't seem to have brought the region, or the state, or the country, to a grinding halt. It has however helped to fortify the cultural pride of its people.
That attitude of preservation is why, to this day, you can sit by a fireside in North Carolina and hear ancient Cherokee stories told, in both languages, instead of those stories being lost to the steamroller of a Borgified cookie cutter -- as has already happened all too often.
And to the extent that uniquity can survive ............ it enriches all of us.